[PATCH] D39396: Fix for PR33930. Short-circuit metadata mapping when cloning a varargs thunk.

[Wolfgang Pieb via Phabricator via cfe-commits]

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In https://reviews.llvm.org/D39396#911306, @aprantl wrote:

> This works for me, but as I said previously, perhaps we can get by with just not having any variables described in the thunk to further simplify the code.


I remember, but this "thunk" isn't really a thunk in the sense that it makes some adjustments and then branches to (or calls) the real function. It effectively becomes the real function (hence the cloning), so if you drop the variables you lose the ability to debug it.


https://reviews.llvm.org/D39396